Canada's economy shrank by 0.3 per cent in October, the first decline in gross domestic product since May.
Statistics Canada says a main reason behind the contraction was a two per cent drop in manufacturing output, the biggest monthly fall since December 2013.
The oil and gas extraction sector also slipped 2.5 per cent in October after four monthly increases.
There were also declines in construction, utilities, agriculture, forestry and goods-producing industries.
October ended a four-month streak of monthly gains in GDP.